faure



(No Model.)

- E. F. G. H. FAURE.

ADJUSTING MECHANISM FOR ARC LIGHT GARBON$K No. 531,840. Patented Jan. 1, 1895 4E nonms Perms cu, mummmco.v WASHINGTON. a.

ihvrrnn STATES PATENT @rrrcn.

ELIE F. G. H. FAURE, OF SCHENEOTADY, NEW YORK, ASSIGNOR TO THE THOMSON-HOUSTON ELECTRIC COMPANY, OF SAME PLACE.

ADJUSTING MECHANISM FOR ARC-LIGHT CARBONS.

SPECIFICATION forming part of Letters Patent No. 531,8d0, dated January 1,1 895.

Application filed August 22, 1894. Serial No. 2 4 (No model) To ctZZ whom it may concern:

Be it known that l, ELIE FRITZ GUsrAvE HENRI FAURE, a citizen of the French Republic, residing atSchenectady, in the county of Schenectady and State of New York, have invented certain new and useful Improvements in Adjusting Mechanisms for Arc-Light Garbons, of which the following is a specification.

My invention relates to are lamps, and more particularly to that class of arc lamps known as search-lights or projectors and has for its objectto provide a simple means for eifecting the alignment of the carbons so that the arc may be produced at exactly the point best adapted for the reflection of the light. To this end I arrange the clamps holding the carbons at right angles to one another, in different horizontal planes, and I center each of these clamps upon the body of the screw which holds its parts together. Through the other end of the clamp I pass a shaft which has small eccentric portions upon it registering with the parts of the clamp itself, and by turning this shaft I throw the end of the clamp farthest from the carbon up or down and thus move the carbon about the central point of the clamp as a center. The two adjustments being at right angles to each other, I am enabled to get the carbons at exactly the point best adapted to form the arc.

My invention is illustrated in the accompanying drawings, in which-- Figure 1 shows a side elevation partly in section of the carbon-supporting mechanism and its feeding screws. Fig. 2 is a section upon the line 2-2 of Fig. 1 showing in detail the parts of the clamp.

A, A are the carbons. B is the-rod upon which slide the clamps supporting the carbon. C is a centering shield protecting the screw threads from carbon dust and provided with a lug c opposite which the arc is to be formed. D, I) are right and left hand screws adapted to feed the carbons together. All of these parts are old and well known in the art and I make no claim for them.

ported by the carriage E moving upon the screw D in Fig. 1., The clamp consists of two jawsfifcentered upon a pin G, the pin having-a lock-nut G with a milled head by which the clamp and jaws are brought down to engage with and firmly hold the carbon A. A projection K from the carriage E supports the entire clamp. Through this projection passes a shaft I provided with a handle 11. This shaft moves about the dotted line i, v; as a center; and it will be seen that the parts I, 11 passing through the clamping jaws f, f are eccentric to this line and that by the rotation of the handle H they will move the clamping jawsf, f up or down around the pin G as a center. This action will be best understood from Fig. 1, wherein the movement of the upper clamp F will adjust the carbon A to the right or to the left, according as the rear part of the clamping jaw f is moved up or down, the different positions of the carbon being shown by dotted lines. The upper carbon A will thus be swung toward or away from the shield C, and the carbon A may be, swung in a plane at right angles to the motion of the carbon A. At the intersection of the two planes, which may thus be adjusted as desired, the arcing point will be found.

It is manifest that the apparatus may be turned on its side,in which case the two clamps would be in different vertical planes. This is of course not a desirable arrangement, but would be Within the scope of my claims.

\Vhat I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a carbon-adj usting mechanism for are lamps, two carbon supporting clamps arranged at right angles in different planes, each adapted to swing about a central point; whereby the carbons may move in planes at right angles to each other, and the point of intersection of the planes may be varied.

2. In a carbon-supporting mechanism for are lamps, two carbon-holding clamps arranged at right angles to each other in different planes, each clamp supported upon a center, and means adapted to move the clamps about such central support.

3. In a carbon-supporting mechanism, two carbon-holding clamps arranged at right angles to each other in different horizontal planes, each clamp supported upon its clamping pin as a center, and means adapted to move each clamp about its central pin.

4. In a carbon-supporting mechanism for are lamps, two carbon holding clamps arranged at right angles to each other in different horizontal planes, each clamp arranged to move about its clamping pin as a center, and being provided with a shaft passing through the clamping jaws, such shaft having eccentric portions adapted to adjust the position of the clamp, as herein set out.

5. A carbon-supporting clamp for are lamps consisting of clamping jaws supported upon a center, means for holding the jaws together or releasing them, and means for turning them about their center, as herein set out.

6. A carbon-supporting clamp for are lamps, comprising two clampingjaws for the carbon, a central shaft about which the clamping jaws may turn, such shaft being provided with a thread and nut adapted to clamp the jaws together and release them, and means for adjusting the position of the jaws about such shaft as a center.

7. A carbon-supporting mechanism for are lamps, comprising two carbon-holding jaws, a shaft provided with a lock-nut about which shaft the jaws may swing as a center, a second shaft passing through the part supporting the jaws and provided with eccentric portions adapted to adjust the position of the jaws about the clamping shaft as a center, as herein set out.

In witness whereof I have hereunto set my hand this 14th day of August, 1894:.

ELIE F. G. H. FAURE.

Witnesses:

B. B. HULL, R. E. BRIZEE. 

